1.y=1/2x at u-axis
x=0 at v-axis
parallologram w/ vertices
at (0,0)(10,5)(0,7)(10,2)
seg joining pts (2,3)(10,8)
Triangle w/ vertices (0,1)(2,1)(2,2)
3.G is a one-to-one func throughout
all possible domains
13.Jac(G)=-10
15.Jac(g)=1
17.Jac(G)=4
19.G(u,v)=4u+2v,u+3v)
23.Area(G(R))=105
  
1.F(1,2)=[1 1],
graphed: faces northeast
F(-1,-1)=[1 -1],
graphed: faces southeast
3.F(P)=[0 1 0],
graphed: pts towards inc
y-axis 
F(Q)=[2 0 2]
5.F=[1 0]
Field faces to east (x-axis)
7.F=xi, faces in both directions
from origin
9.F=[0 x]
field vecs pt north 
when right of origin, 
but point south when left of 
origin. Magnitude increases
with distance from origin
11.F=[x/x^2+y^2 y/x^2+y^2]
Vectors pt away from origin
w/ magnitude decreasing as 
distance from origin increases
17.Plot(C)
23.div(F)=y+z,
curl(F)=[y 3x^2 -x]
25.div(F)=1
curl(F)=[-1 2x^2-2xz^2 -y]
27.div(F)=0,
curl(F)=[1-3z^2 1-2x 1+2y]